期刊
JOURNAL OF PLANT RESEARCH
卷 116, 期 3, 页码 183-188出版社
SPRINGER-VERLAG TOKYO
DOI: 10.1007/s10265-003-0085-7
关键词
Alnus hirsuta var. sibirica; C-13; current-year shoot population; tracer experiment; translocation of photosynthate
Carbon autonomy of current-year shoots in flowering, and of current-year shoots plus 1-year-old shoots (1-year-old shoot system) in fruiting of Siberian alder (Alnus hirsuta var. sibirica) was investigated using a stable isotope of carbon, C-13. The current-year shoot and 1-year-old shoot systems were fed (CO2)-C-13 and the atom% excess of C-13 in flowers and fruits was determined. The majority of photosynthate allocated to flower buds was originally assimilated in the leaves of the flowering current-year shoots. Of all the current-year shoots on fruiting 1-year-old shoots, only those nearest to the fruits allocated the assimilated photosynthate to fruit maturation. These results indicate that the current-year shoots and 1-year-old shoot systems are carbon-autonomous units for producing flowers and maturing fruits, respectively.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据